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1 ; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 < %s | FileCheck %s
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2
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3 ; When commuting the operands of a SSE blend, make sure that the resulting blend
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4 ; mask can be encoded as a imm8.
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5 ; Before, when commuting the operands to the shuffle in function @test, the backend
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6 ; produced the following assembly:
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7 ; pblendw $4294967103, %xmm1, %xmm0
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8
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9 define <4 x i32> @test(<4 x i32> %a, <4 x i32> %b) {
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10 ;CHECK: pblendw $63, %xmm1, %xmm0
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11 %shuffle = shufflevector <4 x i32> %a, <4 x i32> %b, <4 x i32> <i32 4, i32 5, i32 6, i32 3>
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12 ret <4 x i32> %shuffle
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13 }
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